Gas-purifier.



m. 632,40l. Patented Sept. 5, I899.

B. E. CHOLLAR.

GAS PURIFIER'.

[Application filed May 4, 1899.)

(No Model.)

,yfl/ zyron 15? 0929222 UNITED STAT S PATENT OFFICE.

BYRON E. OHOLLAR, ST. LOUIS, MISSOURI.

GAS-PURIFIER.

SPECIFICATION forming part of Letters Patent No. 632,401, datedSeptember 5, 1899.

Application filed May 4:; 1899. Serial No. 715,505. (No model.)

1'0 a whom it may concern.-

Be it known that I, BYRON E. OHOLLAR, a citizen ofthe United States,residing at the city of St. Louis, in the State of Missouri, haveinvented certain new and useful Improvements in Gas-Purifiers, of whichthe follow-' ing is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspecification.

The present invention relates to a gas-purifier of the type shownanddescribed in application for patent filed by me August 5, 1898,Serial No. 687,773.

The purpose of the present improvement is to provide space-boxes at theinlet or outlet openings of the purifier-tanks described in theapplication for patent hereinbefore referred to, the said boxes beinglocated both above and belowsaid openings in order to provide for theingress or egress of the gas to or from the purifying material, so as toavoid possibility of the said openings becoming closed by the settlingor rising of the purifying material within the tank.

My invention. consists in features of novelty hereinafter fullydescribed and pointed out in the claim.

Figure I is a top view of a pair of purifying-tanks having pipingconnection, one of said tanks being shown partly broken away inhorizontal section to illustrate the interior and show the upperspace-box. Fig. 11 is an enlarged vertical sectional view of one of thetanks, taken on the line of the inlet or outlet and the space-boxeslocated thereat. Fig. III is a perspective view of the two spaceboxes.

The purifier-tanks 1 and 1 and the piping 2, by which they areconnected, are of substantially the same construction as thatillustrated in my application for patent hereinbefore mentioned. Thepiping 2 is connected to both tanks, as described in said applica tion,in such manner that a flow of gas therethrough may be accomplished toeither tank as the initial receiver and from the first-entered tank toan outlet and again into said piping to the other tank, from which,after passing therethrough, it returns to the piping and is conveyed toa point of delivery. It is evident, therefore, that, as statedin thespecification of the application hereinbefore referred to, the inlets oroutlets of either tank may either of them be used as an outlet or inlet.Iwill, however, for convenience in description, refer to one of theopenings as an inlet aud'the other opening as an outlet, and with thisunderstanding, alluding to Fig. II, 3 designates the inlet and Ianoutlet tube, the said inlet and outlet tubes being both arof open-toppedfilter-bed retaining-tanks proranged to communicate with the piping 2.

5 designates thelower layer of gridwork, on which a lower layer 6 ofpurifying material is laid.

7 designates a double gridwork containing a passage-way 8 therethrough,and 9 is the upper layer'of purifying material supported by the doublegridwork 7, which in turn is wholly supported by the layer 6 ofpurifying material. The layers of purifying material 6 and 9 and thedouble gridwork 7, located between them,being wholly supported by theirown bodies Within the purifier-tank, it is obvious that such parts aresusceptible to a settling action, and that in such event the doublegridwork 7 would be carried downwardly away from the opening 3, withwhich the passage-way 8 therein is adapted to communicate, and thattherefore the free flow of gas into or out of the purifier-tank throughsaid opening would be obstructed. Another difficulty liable to beencountered in the use of this type of purifying apparatus is that ofthe rising of the beds or layers of purifying material Within the tanksby reason of the accumulation of sulfur deposited in the purifyingmaterial in the process of the purification of gas.

As is well known, crude coal-gas contains alarge amount of sulfuretedhydrogen which must be removed from the gas in eifecting itspurification. The sulfur of said sulfureted hydrogen is deposited in thelayers 6 and 9 of purifying material, thereby increasing the bulk of thelayers 6 and 9, according the difficulties liable to arise as stated, 1locate space-boxes 10 and 13 above and below the double gridwork 7 atthe location of the inlet or outlet 3, these boxes being adapted to fitloosely against the tank-wall, so that they may rise andfall with thesaid gridwork and layers of purifying material. The boxes 10 and 13 areshown in detail in Fig. III. The box 10 is composed of side walls 11 anda tapering wall12, and is open at its under side and also open at theside that rests against the tank-wall. The box 13 has'side walls 14. Atapering wall 15 is open at its upper side where it rests against theunder side of the gridwork7 and is also open at its side which bears incontact with the tankwall. By the use of these boxes the purifyingmaterial is held away from the opening 3, and in the event of suchmaterial settling or rising within the tank the said boxes moveaccordingly, so as to provide for the certainty of space from thepassage-way in the double gridwork to the opening 3 or from the opening3 into said passage-way, according to the direction of flow, therebyavoiding liability of the said opening becoming clogged.

I'claim as my invention- In a gas-purifier, the combination of a tank, alower gridwork located therein, a lower layer of purifying materialmounted on said gridwork, a double gridwork on said lower layer ofpurifying material, provided with a gas passage-Way extending laterallytherethrough, said tank being provided with an inlet or outlet locatedin proximity to the passage-way in said double gridwork, an upper layerof purifying material mounted on said double grid work and whollysupported thereby,'and space-boxes located above and below said doublegridwork at said inlet or outlet, 40 substantially as described.

BYRON E. OHOLLAR.

In presence of- E. S. KNIGHT, G. A. TAUBERSOHMIDT.

